STRUCT PARPORT_IP32_REGS(9)

📦 version 7.3.1, in nixpkgs unstable

✨ NAME ✨

okay so bestie, this is the struct parport_ip32_regs page from the Kernel API Manual 💖 — and it is literally giving virtual addresses of parallel port registers. that's the whole assignment, no cap.

🦋 SYNOPSIS 🦋

the struct itself, exactly as it lives:

struct parport_ip32_regs {
    void __iomem *data;
    void __iomem *dsr;
    void __iomem *dcr;
    void __iomem *eppAddr;
    void __iomem *eppData0;
    void __iomem *eppData1;
    void __iomem *eppData2;
    void __iomem *eppData3;
    void __iomem *ecpAFifo;
    void __iomem *fifo;
    void __iomem *cnfgA;
    void __iomem *cnfgB;
    void __iomem *ecr;
};

🎀 Members 🎀

field-by-field, because every single one is a void __iomem * and every single one matters:

  • data — Data Register. iconic.
  • dsr — Device Status Register.
  • dcr — Device Control Register.
  • eppAddr — EPP Address Register.
  • eppData0 — EPP Data Register 0.
  • eppData1 — EPP Data Register 1.
  • eppData2 — EPP Data Register 2.
  • eppData3 — EPP Data Register 3.
  • ecpAFifo — ECP Address FIFO.
  • fifo — General FIFO register. The same address is used for:
    • cFifo — the Parallel Port DATA FIFO
    • ecpDFifo — the ECP Data FIFO
    • tFifo — the ECP Test FIFO
  • cnfgA — Configuration Register A.
  • cnfgB — Configuration Register B.
  • ecr — Extended Control Register.

🌈 SEE ALSO 🌈

if you're going down the rabbit hole — and bestie, you should 💅 — start here:

  • Kernel file ./drivers/parport/parport_ip32.c enum

and then the whole icon list, every single one, no skips:

xoxo, your kernel bestie 🫶 — source/version: ./drivers/parport · date: October 2026.

📦 where this page comes from